Mold for molten metals and minerals.



PATENTED SEPT 4, 1906 R. H. ADAMS. MOLD FOR MOLTEN METALS AND MINERALS.

APPLIOATION FILED SEPT. 2, 1903. RENEWED JAN. 6, 1906.

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R. H. ADAMS.

MOLD FOR MOLTEN METALS AND MINERALS.

APPLICATION FILED SEPT. 2, 190a. RENEWED JAN.6,1906.

2 SHEETS-SHEET 2.

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PATENTED SEPT. 4, 1906 UNITE STATES PATENT FFIGE.

MOLD FOR MOLTEN METALS AND MINERALS.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed September 2, 1903- Renewed January 6 1906. Serial No.294,827.

To ctZZ when t it may concern:

Be it known that I, RICHARD H. ADAus, of the city of Toronto, in thecounty of York and Province of Ontario, Canada, have invented certainnew and useful Improvements in Molds for Shaping Molten Metals andMinerals; and I here by declare that the following is a full, clear, andexact description of the same.

This invention relates to a matrix for molding into a compact orhomogeneous mass mineral and metallic matter which has been convertedfrom a solid to a liquid state by a high degree of heat or caloric. Theheat or caloric employed to liquefy the material becomes latent in theliquefied mass and is partly absorbed by the mold when the molten masshas been poured therein, and causes the mold to expand and permit of theliquefied mass occupying a larger bulk than the internal dimensions ofthe mold under normal conditions would allow of.

The expansion of the metal mold being ordinarily greatly in excess ofthe expansion of its liquefied contents results, when the mold and itscontents have cooled, in the contraction of its sides and ends a ainstthe molded mass, which renders the delivery of the molded massexceedingly difficult. To obviate this difliculty is the object of thepresent invention, which is accomplished by making the mold of separablesections, arranged when the mold is in its normal position to be tightlyclosed one against the other, and to be automatically separated as themold moves from its normal to its delivery position, this automaticaction of the mold being effected by the peculiar construction andarrangement of the parts hereinafter more fully set forth, and moreparticularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of the mold, showing theparts in their normal position. Fig. 2 is a similar view showing thesame parts with the mold in its overturned position. Fig. 3 is asectional view on the lines a a, Fig. 1. Fig. 4 is a sectional view onthe lines I) b, Fig. 2.

Like letters of reference refer to like parts throughout thespecification and drawings.

The mold-section a consists of a side member b and an end member 0,secured to or integrally formed with each other, while the section a,consists of a side member I), an end member 0, and a bottom member d.l/Vhen the mold-sections a and a are assembled, the side edges of theend members 0 and 0 engage the side members I) and b, respectively, andform a practically perfect contact therewith. Along the free edges ofthe bottom member (1 is a groove 0 to receive the tongue f, forming partof the inner faces of the side member I) and end member 0. Extendinglongitudinally along the middle of the bottom member (Z is a rib (Z tonot only strengthen the mold, but also to form in the molded mass 2.correspondingly-shaped groove. Projecting downwardly from the lower edgeof the side member I) is a flange g, having a slot h to receive a lug i,projecting laterally from the side edge of the bottom member (1, thedimensions of the slot it being slightly greater than those of the lugto admit of a limited movement of the lug therein as the sections arerespectively separated and closed. Projecting outwardly from each of theside memhers I) and b are tapering trunnions j, axes of which are not inthe same straight line, but intersect at the middle of the mold below animaginary line passing through the centers of the inner ends of thetrunnions when the mold is in its initial position, and secured to theouter face of the side members I) and b, preferably in juxtaposition tothe trunnions j, are cams 7;, arranged to engage the bearings Z, inwhich the trunnions are j ournaled.

To increase the internal dimensions of the mold for the purpose ofpermitting the easy delivery of its contents, the bearings Z are made tocorrespond with the shape of and snugly fit the tapered trunnions, sothat as the geometric center of the trunnions con-- tinually changeduring. their rotation. in the bearings the variations of theinclination of the intersecting axes will cause the longitudinal andlateral separation of the sections, the sections during such separationbeing tilted to increase the area of the mold top to greater dimensionsthan the bottom, the longitudinal movement of the mold-sections beinglimi ted by the limitation of the movement of the lug in the slottedflange and the lateral movement of the mold-sections being limited bythe contact of the side members with the bearings, the cams being soarranged relatively to the bearings that they will permit of thelongitudinal and lateral movement of the mold-sections as the mold movesinto its overturned position. As the mold rotates from its overturned toits normal position the trunnions return the mold-sections to theirassembled or united position, the cams k assisting the trunnions in theassembling of the parts and holding the parts rigidly in their assembledposition by engaging the adjacent faces of the bearings.

In order to provide for a perfect contact of the lid or cover with thecontents of the mold the top edge of one end member is cut away orprovided with an outlet-aperture 0, through which the surplus moltenmaterial may overflow when displaced by the lid or cover m as it movesinto position in the top of the mold, the lid or cover m being providedon its inner face with a rib p to form in the adjacent sur face of thecontents of the mold a similarshaped recess, the front end of the lid orcover having a weight g to forcibly move it into and securely hold it incontact with the mold contents.

Vhen the mold is used for the purpose of shaping molten slag or stone inthe production of building or paving blocks, the bearings Z arepreferably united by means of bifurcated arms 7", formingpart of thebearingbracket 8, which is provided with a tongue t to enter acorresponding socket in the carrierframe shown and described in myconcurrent application, Serial No. 171,138, filed August 28, 1903, thetop of the bracket being fitted with lugs s, to which is hinged the rearend of the cover m, the arms 1" being of a suflicient length to permitof the rotation or semirotation of the mold as it moves from and returnsto its normal osition. The lid or cover be ing hinged to 518 lugs s canbe moved into or out of the mold, as required, during the use of theapparatus, and by hinging the lid or cover to the bearing-bracket themold can rotate unobstructedly from and to its normal position torespectively deliver its molded contents and receive a fresh charge ofmolten material which is poured into the mold when in the uprightposition, (shown in Figs. 1 and 3,) the lid being tilted from the moldfor that purpose and the surplus material overflowing through theaperture 0.

When the mold has been fully charged with its contents, the lid islowered into the posi' tion shown in Fig. 1, engaging the top sur faceof the contents and forming the recess therein, the contents displacedby reason of the entry of the lid into the mold and the formation of therecess overflowing through the aperture 0. When the contents of the moldhave solidified, the lid or cover is raised, and the mold is turned intothe overturned position shown in Figs. 2 and 4, the trunnions thenseparating the sections longitudinally and laterally as the mold movesinto its overturned position to relieve the molded contents of thepressure of the sides'and ends caused by the unequal contraction of themold and molten mass during the cooling of the same. After the deliveryof the contents tlie mold is returned to the position shown in Figs. 1and 3, the rotation of the trunnions during the return of the moldcausing the longitudinal and lateral closing of the sections, the camsat the same time contacting the bearings and assisting the trunnions toreassemble, and thereafter hold the sections securely in theirreassembled condition.

Secured to the sides of the mold-sections a and a areoutwardly-projecting flanges w overhanging the inner faces of thebearings and the adjacent part of the trunnions to shed from thetrunnions and bearings any molten material which might overflow from thetop of the mold, and by doing so protect the bearings and trunnions fromthe injurious action of the material upon the bearingsurfaces of theseparts.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A mold consisting of two mold-seotions separable longitudinally andlaterally, trunnions for the mold-sections having their armsintersecting between the mold sides, bearings for the trunnions arrangedto automatically cause the longitudinal and lateral se aration of themold-sections as the mo d moves into position to deliver its contentsand to close them together as it moves into its normal position.

2. A mold consisting of two mold-sections separable laterally andlongitudinally, tapering trunnions for the mold-sections the axes ofwhich are not in the same straight line and correspondingly-shapedbearings for the trunnions which during their rotation are arranged tocause the longitudinal and lateral separation of the moldsections as themold moves into position to deliver its contents and the longitudinaland lateral closing together of the same as the mold returns to itsnormal position.

8. A mold consistin of mold-sections, tapering trunnions for t emold-sections, correspondingly-shaped bearings for the trunnions, camsfor the mold-sections adapted to engage the bearings as the mold movesinto its normal position and stops to limit the longitudinal movement ofthe mold-sections as they separate and close, substantially asspecified.

4. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themoldsections as the mold moves into position to IIO deliver its contentsand to cause the closing assist the trunnions in the closing of thesections, a slotted guide member for one of the mold-sections and atongue for the other mold-section of lesser dimensions than andcontained in the guide member to limit the longitudinal movement of thesections, substantially as specified.

5. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themold-sections as the mold moves into position to deliver its contentsand to cause the closing of the mold-sections as the mold returns to itsnormal position, cams for the mold-sections arranged to engage thebearings and assist the trunnions in the closing of the sections, aslotted guide member for one of the moldsections and a tongue for theother moldsection of lesser dimensions than and con tained in the guidemember to limit the longitudinal movement of the sections, arms to whichthe bearings are connected and a yoke uniting the arms, substantially asspecified.

6. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themold-sections as the mold moves into position to deliver its contentsand to cause the closing of the mold-sections as the mold returns to itsnormal position cams for the mold-sections arranged to engage thebearings and assist the trunnions in the closing of the sections a slotted guide member for one of the moldsections and a tongue for the othermoldsection of lesser dimensions than and contained in the guide memberto limit the longitudinal movement of the sections, and a lid for themold hinged to the bearings, substantially as specified.

7. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themoldsections as the mold moves into position to deliver its contents andto cause the closing of the mold-sections as the mold returns to itsnormal position, cams for the mold-sections arranged to engage thebearings and assist the trunnions in the closing of the sections, aslotted guide member for one of the mold-sections and a tongue for theother moldsection of lesser dimensions than and contained in the guidemember to limit the longitudinal movement of the sections, arms to whichthe bearings are connected, a yoke uniting the arms, and a lid hinged tothe bearing-arms and adapted to enter the mold, substantially asspecified.

8. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged. to cause the separation of themoldsections as the mold moves into position to deliver its contents andto cause the closing of the mold-sections as the mold returns to itsnormal position, cams for the mold-sec tions arranged to engage thebearings and assist the trunnions in the closing of the sections, aslotted guide member for one of the mold-sections and a tongue for theother mold-section of lesser dimensions than and contained in the guidemember to limit the longitudinal movement of the sections and a lid forthe mold hinged to the bearings, and an overflow-aperture for the mold,substantially as specified.

9. A mold consisting of separable moldsections, tapering trunn ons forthe moldsections, correspondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themoldseetions as the mold moves into position to deliver its contents andto cause the closing of the mold-sections as the mold returns to itsnormal position, cams for the moldsections arranged to engage thebearings and assist the trunnions in the closing of the sections, aslotted guide member for one of the mold-sections and a tongue for theother mold-section of lesser dimensions than and contained in the guidemember to limit the longitudinal movement of the sections, arms to whichthe bearings are connected, a yoke uniting the arms, a lid hinged to thebearingarms and adapted to enter the mold, and an overflow-ziperture forthe mold, substantially as specified.

10. A mold consisting of separable moldsections, tapering trunnions forthe moldsections, corres1.)ondingly-shaped bearings for the trunnions,said trunnions being arranged to cause the separation of themoldsections as the mold moves into position, to deliver its contentsand to cause the closing of the mold-sections as the mold returns to itsnormal position, cams for the mold-sections arranged to engage thebearings and assist the trunnions in the closing of the sections, aslotted guide member for one of the mold-sections and a tongue for theother mold-section of lesser dimensions than and contained in the guidemember to limit the longitudinal movement of the sections, a lid for themold hinged to the bearings, projecting flanges for the trunnions andbearings connected to the sides of the mold-sections, substantially asspecified.

11. A rotatable mold consisting of two mold-sections separablelongitudinally and IIO laterally, oppositely-disposed trunnions fortrunnions change during their revolution the mold-sections the axes ofWhich are not therein.

in the sflune straight line hfut intersect be- I Toronto, July 23, A. D.1903.

tween t e o posite sides 0 the mold, stationary bearihgs for thetrunnions to effect ADAMS the longitudinal and lateral separation and Inpresence ofthe corresponding closing together of the C. H. RIoHEs,mold-sections as the geometric centers of the W. A. ANDERSON.

